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HENRY J. CASE, OF AUBURN,

NEW YORK.

Letters Patent No. 89,026,-da ted April20, 1869.

MECHANICAL Movmunnr.

The Schedule referred to in these Letters Patent; and. making part of the lamb- To all whom it may concern Be it known that I, HENRY J CASE, of Auburn, in the county of Gayuga, and State of New York, have invented a new and useful Mechanical Movement, of which the following is a full, clear, and exact description.

The object'of my invention is to produce a simple effective 'mechanical movement, for driving sewingmachines, turning-lathes, and other machines, which will prove less fatiguing to the muscles than tl.e treadle-powers now generally used for this purpose.

The improvement herein claimed consists in a novel method of rotating the band-wheel, or driving-wheel, by means of two cranks, each connected by a link-rod with a vibrating arm on rock-shaft, worked by an oscillating pedal, or pendulum; each system of pedals, rock-shafts, and pibrating arms being independentof the other.

By this mode of construction, I am enabled to drive the machine by a horizontal swinging motion of the foot, instead of the usual vertical movement, which I believe to be much more fatiguing to the musclesfii My improvement further consists in a novel method of combining'a swinging foot-rest with an oscillating pendulum pedal, as hereinafter set forth.

In the accompanying drawings, which make part of this specification Figure 1 represents a view in elevation of my improvement as seen from the front;

Figure? represents a similar view of the same as seen from one side; and,

Figure 3 a view similar to fig. 1, showing a modification of my invention.

A table, or frame, A, to support the mechanism, is mounted on suitable legs B.

Pedals, or pendulums O O, are secured to studs 0 c, on independent rock-shafts D D, by means of setscrews c,'passing through slots in the pedals. By this means the pedals can be raised or lowered to suit operators of different heights.

The lower .part of each pendulum is forked, and a shoe or foot-rest, I, is pivoted in a stirrup, i, so as to oscillate vertically in its bearings, thus relieving the muscles of the operator.

In figs. 1 and 2, the shaft D is shown as passing through the other one, D, which is made tubular for this purpose, so that each can move independently of I the other. 1

The shaft D extends beyond the driving-wheel G, and carries a fixed \arm, E. A link, 0, is pin-jointed on the lower'end of this arm, and on a crank,- F, on the shaft of the driving-wheel G, whichturns in suitable brackets 11 under the table.

The shaft D, in like manner, is connected with the wheel by its arm E, link 0, and crank, F. I prefer to arrange the cranks at a slight angle to each other, instead of diametrically opposite.

.- The operation of the machine will readily be imderstood. v

The pedals are oscillated in alternately opposite directions, imparting a corresponding movement to the rock-shafts and vibrating arms E E. These impart a continuous rotary movement to the driving'wheel, through the links 0 e, and cranks F F.

In fig. 3, I have shown both cranks as arranged on the same side of the driving-wheel, and the rock-shafts as arranged in line, but not passing through each other. The operation, however, is thesame in either case.

Two shafts might also be arranged parallel to each other, but not in the same line, and yet work well.

The wheel can be rotated with one pedal only, but the motion is not so uniform as when both are em ployed.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of the pedals, the rock-shafts,

the vibrating arms, the links, and the cranks, all ar ranged and operating as described, with the drivingwheel.

2. The combination, as set forth, with the oscillating pendulum pedal of the rocking foot-rest.

In testimony whereof, I have hereunto subscribed" my name.

. HENRY J. OASE.

Witnesses: 4

- Nnnson GHAPIN,

O. H. HUNTTING.

L. R. COMSTOCK.

Car Hater.

Patented April 20, 1869.

77 5572 eases.

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